胆脂瘤型中耳炎CT表现及临床价值

CT Findings and Clinical Value of Chronic Otitis Media with Cholesteatoma

摘要: 目的: 研究胆脂瘤型中耳炎CT表现,并探讨其临床价值。 方法: 15例19耳胆脂瘤型中耳炎,均经乳突根治术及病理证实,结合手术对照分析其CT表现。 结果: ①发生部位:主要位于中耳腔,占93%(14/15)。位于中耳腔及乳突窦,占27%(4/15)。位于岩锥,占7%(1/15)。②CT表现:窦腔内软组织肿块,骨质破坏,prussaks间隙增宽,窦腔破坏区周边硬化。 结论: CT检查能准确显示胆脂瘤型中耳炎影像特征,对胆脂瘤型中耳炎诊断和鉴别诊断有重要作用,对手术具有十分重要的指导意义。

Abstract: Objective: to study CT findings of chronic otitis media with cholesteatoma, and to evaluate its clinical value. Methods: The CT findings of 19 focuses in 15 cases with chronic otitis media with cholesteatoma were analyzed. All were surgically and pathologically proved. Results: ① Most of the focuses were found in tympana cavity (about 93%), some in tympana cavity and mastoid sinus (about 27%) and only one focus in pars petrosa (7%). ② The primary CT findings were the sign of soft-tissue occupancy and bony-erosion, broadened of prussak,s lacuna, ossified around the bony-erosion. Conclusion CT scan can accurately show the sign of chronic otitis media with cholesteatoma, and it is important to diagnosis and surgical therapy.